Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dinh dai » dinh dat, sinh dai, dinh dao
va dinh » van dinh, va kinh, va tinh
ve cach » va cach, ve canh
su sach » so sach, vu sach
ly nang » ky nang, ly hang, ly vang
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, v nang, may nang
ve cac » va cac, vien cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((y nang) OR (ly nang)) ma hoi. hieu ((ve cach) or (ve cac)) tu va dinh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (ly nang)) ma hoi. hieu ((ve cach) OR (ve cac)) tu va dinh dai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) OR (ly nang)) ma hoi. hieu ((ve cach) or (ve cac)) tu va dinh dai cua triet*".